A quadratic spinor Lagrangian for general relativity (Q1842081)
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| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A quadratic spinor Lagrangian for general relativity |
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A quadratic spinor Lagrangian for general relativity (English)
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17 April 1995
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A new finite action for Einstein gravity in which the Lagrangian is quadratic in the covariant derivative of a spinor field is proposed. By employing a new spinor-curvature identity, the quadratic Lagrangian is related to the usual one by a total differential form. The corresponding Hamiltonian is shown to be fully 4-covariant, and defines a quasi-local energy momentum as in positive energy theories.
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action principles
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spinor calculus
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quadratic Lagrangian
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quasi-local energy
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